Question

which amino acid is specified by the codon gua?
second letter
first letter
third letter
write your answer as the three - letter amino acid abbreviation. write stop for a stop codon.

Explanation:

Locate the codon GUA by first finding the first letter G in the left "First letter" column, then the second letter A in the top "Second letter" row, and finally the third letter U in the right "Third letter" column. The corresponding amino acid is valine, with the three-letter abbreviation Val.

Answer:

Val